My ABS went out on my 1990 SC. I've checked the relay in the engine comp and it's good,But still the motor would'nt kick on. So with a wire we jumped the relay and the motor went on and charged the System', but not with the relays in place? I have it temporarily jumped to a switch that i ran into the car so i can pressurize the system so i can get around. The Computer threw a 21 and 31 code. ANYONE GOT ANY IDEAS? Thanks Tony Norco Ca.